JPH0234713U - - Google Patents
Info
- Publication number
- JPH0234713U JPH0234713U JP11370788U JP11370788U JPH0234713U JP H0234713 U JPH0234713 U JP H0234713U JP 11370788 U JP11370788 U JP 11370788U JP 11370788 U JP11370788 U JP 11370788U JP H0234713 U JPH0234713 U JP H0234713U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- blow
- cylinder head
- head cover
- return
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
第１〜３図はこの考案の実施例を示し、第１図
はブローバイガス還元装置の要部拡大断面図、第
２図はブローバイガス還元装置の概略断面図、第
３図はシリンダヘツドの概略平面図である。第４
図は従来のブローバイガス還元装置の概略断面図
である。
図において、２はエアクリーナ、４は内燃機関
、６は吸気管、８は吸気通路、１０は気化器、１
２はスロツトルバルブ、１４はシリンダブロツク
、１６はシリンダヘツド、１８はシリンダヘツド
カバー、２０はオイルセパレータ、２２は上側空
間部、２４は下側空間部、２６はブローバイガス
ホース、２８はブローバイガス吸入部、３０はエ
ンジンオイル戻し孔部、３２は筒状部材、３４は
ブローバイ通路、３６はＰＣＶバルブ、３８は開
口部、４０は吸気孔、４２はピストン、４４は燃
焼室、４６は排気孔、４８は吸気弁、５０は排気
弁である。
Figures 1 to 3 show examples of this invention, with Figure 1 being an enlarged sectional view of the main parts of the blow-by gas reducing device, Figure 2 being a schematic sectional view of the blow-by gas reducing device, and Figure 3 being a schematic diagram of the cylinder head. FIG. Fourth
The figure is a schematic cross-sectional view of a conventional blow-by gas reduction device. In the figure, 2 is an air cleaner, 4 is an internal combustion engine, 6 is an intake pipe, 8 is an intake passage, 10 is a carburetor, 1
2 is a throttle valve, 14 is a cylinder block, 16 is a cylinder head, 18 is a cylinder head cover, 20 is an oil separator, 22 is an upper space, 24 is a lower space, 26 is a blow-by gas hose, and 28 is a blow-by gas suction 30 is an engine oil return hole, 32 is a cylindrical member, 34 is a blow-by passage, 36 is a PCV valve, 38 is an opening, 40 is an intake hole, 42 is a piston, 44 is a combustion chamber, 46 is an exhaust hole, 48 is an intake valve, and 50 is an exhaust valve.
Claims (1)
に流出するブローバイガスを吸気系に還元させる
ブローバイガス還元装置において、前記シリンダ
ヘツドカバーと前記吸気系の気化器よりも上流側
の吸気通路に位置するエアクリーナとを連通する
ブローバイガスホースを設け、前記シリンダヘツ
ドカバー内に内燃機関にブローバイガスを還元す
るブローバイガス通路を設けるとともにこのブロ
ーバイガス通路途中には前記シリンダヘツドカバ
ー内に位置し内燃機関へのブローバイガス還元量
を調整するＰＣＶバルブを設けたことを特徴とす
るブローバイガス還元装置。 In a blowby gas return device that returns blowby gas flowing into the cylinder head cover on the upper surface of the cylinder head to the intake system, the cylinder head cover is communicated with an air cleaner located in the intake passage upstream of the carburetor of the intake system. A blow-by gas hose is provided in the cylinder head cover to return blow-by gas to the internal combustion engine, and a blow-by gas passage is provided in the cylinder head cover to return blow-by gas to the internal combustion engine. A blow-by gas reduction device characterized by being provided with a PCV valve for adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11370788U JPH0234713U (en) | 1988-08-30 | 1988-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11370788U JPH0234713U (en) | 1988-08-30 | 1988-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0234713U true JPH0234713U (en) | 1990-03-06 |
Family
ID=31353784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11370788U Pending JPH0234713U (en) | 1988-08-30 | 1988-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0234713U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007315206A (en) * | 2006-05-23 | 2007-12-06 | Honda Motor Co Ltd | Blowby gas recirculation device of internal combustion engine |
| JP2014105581A (en) * | 2012-11-22 | 2014-06-09 | Aisin Seiki Co Ltd | Positive crankcase ventilation system |
| CN109252914A (en) * | 2017-07-12 | 2019-01-22 | 马自达汽车株式会社 | The head-cover structure of engine |
| US10731601B2 (en) | 2017-07-14 | 2020-08-04 | Mazda Motor Corporation | Cylinder head cover structure for engine |
-
1988
- 1988-08-30 JP JP11370788U patent/JPH0234713U/ja active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007315206A (en) * | 2006-05-23 | 2007-12-06 | Honda Motor Co Ltd | Blowby gas recirculation device of internal combustion engine |
| JP2014105581A (en) * | 2012-11-22 | 2014-06-09 | Aisin Seiki Co Ltd | Positive crankcase ventilation system |
| CN109252914A (en) * | 2017-07-12 | 2019-01-22 | 马自达汽车株式会社 | The head-cover structure of engine |
| JP2019019696A (en) * | 2017-07-12 | 2019-02-07 | マツダ株式会社 | Cylinder head cover structure of engine |
| US10767524B2 (en) | 2017-07-12 | 2020-09-08 | Mazda Motor Corporation | Cylinder head cover structure for engine |
| CN109252914B (en) * | 2017-07-12 | 2021-01-05 | 马自达汽车株式会社 | Cylinder head cover structure of engine |
| DE102018116622B4 (en) | 2017-07-12 | 2022-10-20 | Mazda Motor Corporation | Cylinder head cover structure for engine |
| US10731601B2 (en) | 2017-07-14 | 2020-08-04 | Mazda Motor Corporation | Cylinder head cover structure for engine |
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